New messages in timeline no longer appear with an animation

### Steps to reproduce

1. Send or receive a message.

### Outcome

#### What did you expect?
New messages have a "slide in" animation, like they used to a few versions ago.

#### What happened instead?

https://github.com/element-hq/element-x-android/assets/46846000/e42ec5d9-90e2-4a5e-9990-fdb045e5355f

### Your phone model

Google Pixel 7 Pro

### Operating system version

Android 14

### Application version and app store

v0.4.5 release build

### Homeserver

Synapse v101.0

### Will you send logs?

No

### Are you willing to provide a PR?

No